46.45% is the change from 155 to 227
Calculation steps:
[( 227 - 155 ) ÷ 155] x 100 = 46.45%
Formula
Percentage change = [(227 - 155) / 155] x 100
Subtract the new number by the original number
227 - 155 = 72
72 ÷ 155 = 0.4645161290322581
0.4645161290322581 x 100 = 46.45%